This investigation showed degraded wetland biodiversity near urbanising Hangzhou, with habitat loss to development, water pollution and invasive species. Strategic planning integrating ecological restoration and sustainable development is urgently needed to conserve these ecosystems critical for wildlife and human communities.

This article belongs to the collection Ecological monitoring and assessment of freshwater ecosystems: new trends and future challenges.

This study assessed the ecological status of Pampas wetlands under various land uses by examining environmental factors and annelid assemblages. Four water systems were surveyed, showing correlations with environmental conditions. Specific annelid species were linked to factors such as nitrate and phosphorus concentrations. The findings underscore the importance of annelid assemblages in wetland monitoring and the need for sustainable watershed management.

This study reports on the contribution of three phytoplankton size classes to the total chlorophyll-a (Chl-a) concentration at three coastal stations in the Arabian Gulf. It included data on the seasonal cycle for total chlorophyll a, as well as for the three size classes, and indicated physicochemical parameters potentially driving these cycles. It was found that micro- and nanophytoplankton Chl-a are correlated to a similar set of physicochemical parameters, whereas picophytoplankton Chl-a has a distinctly different correlation model.